CN105934211A - Expansible intravertebral implant system with posterior pedicle fixation - Google Patents

Expansible intravertebral implant system with posterior pedicle fixation Download PDF

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Publication number
CN105934211A
CN105934211A CN201480070702.5A CN201480070702A CN105934211A CN 105934211 A CN105934211 A CN 105934211A CN 201480070702 A CN201480070702 A CN 201480070702A CN 105934211 A CN105934211 A CN 105934211A
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CN
China
Prior art keywords
pedicle
way
vertebral arch
escape
intraspinal tube
Prior art date
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Granted
Application number
CN201480070702.5A
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Chinese (zh)
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CN105934211B (en
Inventor
让-弗朗索瓦·奥古拉扎
伊夫-阿兰·雷通
吉安卢卡·马艾斯特瑞特
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Stryker European Operations Ltd
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Vexim SAS
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Publication of CN105934211B publication Critical patent/CN105934211B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1615Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • A61B17/1617Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material with mobile or detachable parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1655Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1671Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/844Fasteners therefor or fasteners being internal fixation devices with expandable anchors or anchors having movable parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802Equipment for handling bone cement or other fluid fillers
    • A61B17/8847Equipment for handling bone cement or other fluid fillers for removing cement from a bone cavity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/885Tools for expanding or compacting bones or discs or cavities therein
    • A61B17/8852Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc
    • A61B17/8858Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc laterally or radially expansible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/686Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8685Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831Material properties
    • A61B2017/00867Material properties shape memory effect
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008Fixation appliances for connecting prostheses to the body
    • A61F2220/0016Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

The present invention relates to an expansible intravertebral implant system comprising an intravertebral implant (1) with an anterior part (11), which is expansible in a vertebral body, and a posterior part; and a pedicle fixation (2) having at least one hollow portion for receiving the posterior part. The present invention also relates to said expansible intravertebral implant system additionally comprising a posterior element (3), arranged partially outside the vertebra and rigidly connected to the pedicle fixation (2), for serving as an anchoring point for at least one intervertebral rod or at least one system of artificial ligaments.

Description

Expansible intraspinal tube implant system with posterior Pedicle fixture
Technical field
The present invention relates to the expansible intraspinal tube implant system of band posterior Pedicle fixture.More particularly, the present invention relates to And by the additional pedicle of vertebral arch pin being fixedly anchored in pedicle of vertebral arch, it is provided that the expansible intraspinal tube strengthening vertebra grappling is implanted System.
Background technology
Known have several vertebroplasty technique to correct for performing vertebra, makes such as because osteoporosis or damage cause Bone compressing and the vertebra that deforms recovers its original shape or form.
For example, as it is known that kyphosis technology, this technology includes: make balloon-expandable enter vertebra;Then, by fluid under pressure Send in the sacculus being positioned at vertebra, to force formation cortex vertebra film;And particularly descend vertebral plate and upper vertebral plate at pressure Effect is lower to recover to correct shape.One has corrected cortex periosteum, and sacculus just reduces, and removes from vertebra such that it is able to by bone Cement injects in it, it is intended to give to correct the mechanical strength of vertebra all-the-time stable.
Particularly in whole international patent application WO2005/120400, it is known that expandable implant, this expansible implantation Thing includes the first and second opposed plates, and this first and second opposed plate is suitable in vertebral body forming the first and second carryings respectively Face, the two loading end is intended to along predetermined expansion face disconnected from each other.Expandable implant is positioned in vertebral body, and along correspondence The expansion face correcting face in the bone pursued affixes one's name to this plate.Then, inject bone cement, so that bone is corrected stable.Holding can be utilized The implant of the appropriate location in vertebral body, injects bone cement with lower pressure.
For most of major injuries, above-cited method is used to prove not competent.It is preferably by inserting and is pressed Compel the screw in the pedicle of vertebral arch of the epipyramis of vertebra and lower vertebra, perform vertebral fracture, and particularly compressing is caused Vertebral fracture is repaired, and these screws are connected with screw-rod, therefore, the two epipyramis and lower vertebra is mechanically connected Connect, so that vertebra is firm.Pedicle screw is well known in the art.Such as United States Patent (USP) 5,209,753 known in especially Described in screw.
The defect of this technology is that the fixing screw-rod connecting epipyramis and lower vertebra causes two vertebral joint levels Merge.Additionally, these methods are not can to correct compressing vertebra by bone all the time, and only make adjacent vertebrae stable, and therefore lock Two close assistant warden.Additionally, there is aggressive very much with the surgical actions of this procedure correlation and require to enter at least two Vertebra.
In order to overcome these defects, it is obviously desirable to provide one can repair vertebral fracture, and particularly can repair Serious vertebral fracture that compressing causes, prevent from merging and the expansible intraspinal tube that can be positioned in vertebral body at pedicle of vertebral arch fixture The equipment of implant.
So, it is an object of the invention to pedicle of vertebral arch fixture (such as, pin or the set making to be intended to be anchored in pedicle of vertebral arch Cylinder) it is connected with the expansible intraspinal tube implant being positioned in vertebral body.This pedicle of vertebral arch fixture guarantees the high reliability supporting of skeleton And grappling.Really, although vertebral body is made up of the spongy bone of the high porosity with 30 to 90%, pedicle of vertebral arch is by having 5 to 30% The cortical bone of porosity constitute, therefore, provide strong mechanical support to intraspinal tube implant, and vertebral fracture can be reconstructed, And particularly can reconstruct the vertebral fracture that compressing causes, even can reconstruct fracture compound comminuted.
Known in include the expansible bone implant system of additive that is anchored in pedicle of vertebral arch bone, the most such as patent application EP System described in 2 074 956 and US 2009/005821.But, these system descriptions are such as by tightening two parts It is rigidly connected to the expansible part of described pedicle of vertebral arch fixture.Because this reason, the dimension of expansible part and should Part location in vertebral body directly depends on the position of pedicle of vertebral arch fixture.
It is an advantage of the current invention that can be along at least one degree of freedom portion independently of pedicle of vertebral arch fixture position Affix one's name to expansible intraspinal tube implant.When implant system is positioned in the extension of vertebra, implant system also allows for relative to vertebra Nut fixture fastens described expansible intraspinal tube implant (that is, locking all degree of freedom).
Advantageously, the rear circuit component as connection system is connected with pedicle of vertebral arch fastener elements so that such as utilize purport Make the most stable screw-rod of fracture point or other system, its can with complete the expansible canalis spinalis interplantation that bone is corrected Enter device to adjoin.
So, the present invention utilizes the modular expansible intraspinal tube implant system of band posterior Pedicle fixture to guarantee vertebra Correct.
Summary of the invention
Therefore, the present invention relates to a kind of expansible intraspinal tube implant system, including: intraspinal tube implant, this canalis spinalis interplantation Enter expansible front road portion and way of escape portion that thing includes being positioned in vertebral body;And pedicle of vertebral arch fixture, this pedicle of vertebral arch fixture has At least one is for accommodating the hollow section in the way of escape portion of intraspinal tube implant.
According to an embodiment, pedicle of vertebral arch fixture includes external screw thread, is used for guaranteeing that described pedicle of vertebral arch fixture is anchored on In pedicle of vertebral arch.
According to an embodiment, pedicle of vertebral arch fixture includes hollow way of escape interior zone and hollow front road interior zone, its The way of escape portion of middle intraspinal tube implant can move along at least one degree of freedom.
According to an embodiment, pedicle of vertebral arch fixture includes main shaft, and the way of escape portion of intraspinal tube implant can be with vertebra The dimension in the front road portion of pipe implant is not dependent on the mode of pedicle of vertebral arch fixture position in pedicle of vertebral arch, at vertebral arch With displacement and rotation mode along the motion of main shaft of pedicle of vertebral arch fixture in the front road interior zone of root fixture.
According to an embodiment, the front road portion of intraspinal tube implant includes the first and second plates, and this first and second plate is fitted For forming the first and second bearing-surfaces in vertebral body respectively, the two bearing-surface is suitable for disconnected from each other along predetermined expansion face.
According to an embodiment, front road interior zone include being positioned on the inner surface of front road interior zone at least one is recessed Mouthful.
According to an embodiment, the way of escape section in the way of escape portion of intraspinal tube implant include cylindrical grooves and at least one Clamp device, this clamp device is suitable for locking the rotation mode between intraspinal tube implant and pedicle of vertebral arch fixture and displacement mode Relative motion.
According to an embodiment, clamp device includes at least one through hole and outer peripheral cell, and this through hole passes way of escape section, institute Shu Wai peripheral cell is by the surface of way of escape section and at least one vented liquid UNICOM described.
According to an embodiment, clamp device includes at least two line of rabbet joint, and this line of rabbet joint is axially along way of escape section, interior After screw thread and enlarging, terminal extends;It is suitable for engaging with cone expansion cap.
According to an embodiment, utilize the threaded bar in the female thread being screwed into way of escape interior zone, rear circuit component is fastened To pedicle of vertebral arch fixture.
According to an embodiment, rear circuit component includes way of escape section, this way of escape section be suitable for such as follow closely excellent or artificial The additional Posterior fixation element of ligament assembles.
Accompanying drawing explanation
According to the illustrative and not restrictive description below with reference to the accompanying drawings done, other special characteristics and advantage aobvious and It is clear to, wherein:
Fig. 1 is the exploded view of implant system according to an embodiment of the invention.
Fig. 2 is the side view of intraspinal tube implant according to an embodiment of the invention.
Fig. 3 A is the side view of pedicle of vertebral arch fixture according to an embodiment of the invention.
Fig. 3 B is the sectional view of pedicle of vertebral arch fixture according to an embodiment of the invention.
Fig. 4 is the perspective view of rear circuit component according to an embodiment of the invention.
Fig. 5 be according to one embodiment of present invention, the implant system that is arranged on the apparatus being suitably inserted into implant system Side view.
Fig. 6 A be according to one embodiment of present invention, the side view of implant system that is positioned in vertebra, described vertebra quilt It is shown as transparent for, only from its contour line.
Fig. 6 B be according to one embodiment of present invention, the top view of implant system that is positioned in vertebra, described vertebra quilt It is shown as transparent for, only from its contour line.
Fig. 7 A is the cross section of the implant system according to one embodiment of present invention, before the expansion of the front road portion of implant Figure.
Fig. 7 B is the cross section of the implant system according to one embodiment of present invention, after the expansion of the way of escape portion of implant Figure.
Fig. 8 A is to illustrate for pedicle of vertebral arch fixture is fastened to intraspinal tube according to an embodiment of the invention implantation After the front road portion expansion of the implant of the device of thing, the sectional view of implant system.
Fig. 8 B is to illustrate the dress for pedicle of vertebral arch fixture is fastened to implant according to an embodiment of the invention After the front road portion expansion of the implant put, the perspective view of intraspinal tube implant.
Fig. 8 C is pedicle of vertebral arch fixture saturating specifically illustrating front road according to an embodiment of the invention interior zone View.
Fig. 9 A is to illustrate for pedicle of vertebral arch fixture is fastened to intraspinal tube according to an embodiment of the invention implantation After the front road portion expansion of the implant of the device of thing, the sectional view of implant system.
Fig. 9 B is to illustrate for pedicle of vertebral arch fixture is fastened to intraspinal tube according to an embodiment of the invention implantation After the front road portion expansion of the implant of the device of thing, the perspective view of implant system.
Figure 10 A be according to one embodiment of present invention, the side view of implant system that is positioned in vertebra, described vertebra quilt It is shown as transparent for, only from its contour line.
Figure 10 B be according to one embodiment of present invention, the sectional view of implant system that is positioned in vertebra, described vertebra quilt It is shown as transparent for, only from its contour line.
Figure in accompanying drawing is not drawn to.Obviously, the scope of the present invention is not limited to be described in greater detail with reference to the accompanying drawings With the example of the embodiment illustrated, on the contrary, it comprises any alternative embodiment.
In figure, label is described as follows:
1: intraspinal tube implant
11: the front road portion of intraspinal tube implant
12: the way of escape portion of intraspinal tube implant
121: shoulder
122: cylindrical grooves
123: room
124: through hole
125: the line of rabbet joint
126: female thread
127: terminal after enlarging
128: the way of escape section in the way of escape portion of intraspinal tube implant
13: center traction tube
131: through hole
2: pedicle of vertebral arch fixture
21: external screw thread
22: way of escape interior zone
221: female thread
23: front road interior zone
231: recess
24: for the device-breach making pedicle of vertebral arch fixture rotate
25: enter groove
3: rear circuit component
31: front road section
311: external screw thread
32: way of escape section
4: vertebra
5: insertion instrument
51: be rotatably connected to the sleeve pipe of pedicle of vertebral arch fixture
52: expansion pipe
6: cone expansion cap
Detailed description of the invention
The present invention relates to the expansible intraspinal tube implant system of band posterior Pedicle fixture.
According to first embodiment, implant system includes the intraspinal tube implant being connected with pedicle of vertebral arch fixture, this pedicle of vertebral arch Fixture guarantee is additional is anchored on pedicle of vertebral arch.
According to the second embodiment, as it is shown in figure 1, implant system includes: intraspinal tube implant 1, this intraspinal tube implant 1 with Pedicle of vertebral arch fixture 2 is connected with rear circuit component 3, this rear circuit component 3 be suitable for being connected to the way of escape vertebra, any be intended to stable, increase Strong or repair vertebral fracture, particularly oppress the equipment of the vertebral fracture caused.
Intraspinal tube implant
As in figure 2 it is shown, include front road portion 11 and way of escape portion 12 according to the intraspinal tube implant 1 of the present invention.
According to an embodiment, front road portion 11 is corresponding to also describe at patent application EP 1 778 136, this technology neck Deformable known to technical staff in territory and distensible intraspinal tube implant 1, such as VEXIM companies marketImplant, at this by quoting this patent application of merging.Make a reservation for indicate, those skilled in the art The feature to embodiments of the invention requirement is easily found after having read described patent application.Particularly, the intraspinal tube of the present invention The front road portion 11 of implant 1 is by can the expandable portion corrected of bone constitute, and this expandable portion includes:
The booking list expansion face that portion 11 ,-described front road is intrinsic,
-the first and second opposed plates, this first and second opposed plate is suitable in vertebral body forming first and second respectively and holds Section, the two loading end is intended to disconnected from each other along described expansion face when the implant is expanded,
-lay respectively at the first and second supporting members of described first and second plates below described first and second plates,
-for setting the device of predetermined expansion value, this device comprises, and is arranged between described supporting member and respective plate One layer of thin (veil) material, described layer has the predetermined thickness of the expansion that can monitor implant.According to an enforcement Example, described front road portion 11 also includes center traction tube 13, and this center traction tube 13 is suitable for controlling the expansion of the first and second plates ?.According to an alternative embodiment, the front road portion 11 of intraspinal tube implant 1 be those skilled in the art known, Deformable, expansible and be suitable for any intraspinal tube implant being retained in vertebral body after the expansion.
According to an embodiment, as shown in Fig. 7 A-B, 8A-B, 9A-B and 10A-B, center traction tube 13 is hollow And including at least one through hole 131, this through hole 131 is suitable for after the first and second plate expansions, by filling out of such as bone cement Fill material to inject in vertebra 4.According to an embodiment, center traction tube 13 at least includes that 1,2,3,4,5,6,7,8,9,10 lead to Hole 131.According to an embodiment, (respectively) through hole 131 diametrically through center traction tube 13, with inner catheter and outer surface it Between realize fluid communication.According to an embodiment, center traction tube 13 includes multiple through hole being distributed in regularly on its surface 131.According to an embodiment, at least one through hole 131 is between two plates, thus in implant, expansion and two occurs After plate separates, with the internal liquid UNICOM of vertebra.Advantageously, packing material is injected in vertebra 4 and make the front road of implant 1 Portion 11 can be maintained at the appropriate location in vertebral body after the expansion.According to an embodiment, packing material is biofacies Hold bone cement, such as, ionic cement, phosphorus matter lime cement (phosphocalcium cement), acrylic cement or these Compound or resin.According to an embodiment, packing material solidifies after injection it.Advantageously, the consolidating of packing material Change and make it possible to consolidate vertebra 4 and implant system implantation intensity in vertebra 4 can be strengthened.
According to an embodiment, way of escape portion 12 is hollow cylinder, and this hollow cylinder is in its front terminal by shoulder 121 even Receive the rear terminal in front road portion 11.Described way of escape portion 12 includes cylindrical grooves 122, and the center being originally located in front road portion 11 is led Skirt 13 can be slided by this cylindrical grooves 122.By drawing center traction tube 13, center traction tube 13 is in way of escape portion 12 Cylindrical grooves 122 is slided, and the front terminal in front road portion 11 and rear terminal move closer to so that intraspinal tube implant 1 Front road portion 11 first and second plates expansion.Center traction tube 13 is applicable to control the portion in expansible deformable front road portion 11 Administration.In groove 122, one pulls traction tube 13, and this pipe cannot return again to its initial position, so keeps the expansion in front road portion 11 , until injecting bone cement or succedaneum.
The embodiment specifically illustrated according to Fig. 8 B, the way of escape portion 12 of intraspinal tube implant 1 includes cylindrical grooves 122 With at least one through hole 124.Advantageously, during at least one through hole is positioned at the way of escape section 128 in way of escape portion 12.According to a reality Executing example, way of escape section 128 is the section in the way of escape portion 12 permanently remaining in the intraspinal tube implant in front road interior zone 23. According to an embodiment, cylindrical grooves 122 is through the whole way of escape portion 12 of implant.According to an embodiment, canalis spinalis interplantation The way of escape portion 12 and the particularly way of escape section 128 that enter thing also include having the section reducing external diameter, therefore limit outer peripheral cell 123.According to an embodiment, at least one through hole 124 passes the way of escape of implant from cylindrical grooves 122 to outer peripheral cell 123 Portion 12.According to an embodiment, the way of escape portion 12 of implant, and particularly its way of escape section 128 at least include 1,2,3,4, 5,6,7,8,9,10 through holes 124.According to an embodiment, through hole 124 is distributed on way of escape section 128 regularly.
According to an embodiment shown in Fig. 9 B, the way of escape portion 12 of intraspinal tube implant includes cylindrical grooves 122 and extremely Few one passes way of escape portion 12 and the line of rabbet joint 125 extended in the axial direction.Advantageously, after this at least one line of rabbet joint 125 is positioned at In the way of escape section 128 in road portion 12.According to an embodiment, way of escape section 128 is corresponding to permanently remaining in Qian Lu inner area The section in the way of escape portion 12 of the intraspinal tube implant in section 23.According to an embodiment, cylindrical grooves 122 is through implant Whole way of escape portion 12.According to an embodiment, way of escape portion 12 and the particularly way of escape section 128 of intraspinal tube implant also include The female thread 126 being positioned on the inner surface of cylindrical grooves 122.According to an embodiment, the way of escape portion 12 of intraspinal tube implant And terminal 127 after particularly way of escape section 128 also includes the enlarging being suitable for engaging with cone expansion cap 6.According to an enforcement Example, way of escape portion 12 at least includes 1,2,3,4,5,6,7,8,9,10 lines of rabbet joint 125.According to an embodiment, the line of rabbet joint 125 is along entirely Portion or a part of way of escape section 128 extend.According to an embodiment, screw thread 126 is along all or part of way of escape section 128 Extend.
According to an embodiment, the expansion of intraspinal tube implant 1 is not as injecting product the way of escape portion of implant 1 and leads Cause.But, inject packing material and enable to implant and can stablize once being in its expanded position.According to an enforcement Example, intraspinal tube implant 1 does not includes being intended to filling product (such as, packing material) so that the bag that can expand of this bag,.Root According to an embodiment, only inject packing material by front road portion 11 and do not allow intraspinal tube implant 1 to expand.
According to an embodiment, the way of escape portion 12 of intraspinal tube implant 1 does not includes being intended to be screwed in one with pedicle of vertebral arch fixture 2 The external screw thread risen.
Pedicle of vertebral arch fixture
As shown in Figure 3A, at least one screw thread 21 is included according to the pedicle of vertebral arch fixture 2 of the present invention.According to an enforcement Example, pedicle of vertebral arch fixture 2 includes the screw thread 21 being positioned on the outer surface of pedicle of vertebral arch fixture 2.Described external screw thread 21 is suitable at vertebra Nut provides bone anchor.Pedicle of vertebral arch fixture 2 is anchored in pedicle of vertebral arch to intraspinal tube implant 1 and particularly to described The expansible front road portion 12 of implant 1 provides additional mechanical to support.The groove 25 of the front terminal being positioned at pedicle of vertebral arch fixture 2 helps In pedicle of vertebral arch fixture 2 is inserted in osseous tissue.According to an embodiment, the outer surface of pedicle of vertebral arch fixture 2 does not has external screw thread It is texture outside the texture produced, the most such as network, striated structure or speckle structures.As shown in Figure 3 B, pedicle of vertebral arch Fixture 2 is hollow cylindrical pedicle of vertebral arch pin or the sleeve including way of escape interior zone 22 and front road interior zone 23.Root According to an embodiment, pedicle of vertebral arch fixture 2 is not the solid pedicle screw including hollow interior partial section.According to a reality Executing example, pedicle of vertebral arch fixture 2 is hollow along its whole length.According to an embodiment, way of escape interior zone 22 and Qian Lu Interior zone 23 does not have identical surface condition.
According to an embodiment, it is any that way of escape interior zone 22 includes in the range of female thread 221 or the art Other devices, for being connected to rear circuit component 3 by fixture 2.
According to an embodiment, front road interior zone 23 includes aperture, and this aperture limits and is used for accommodating intraspinal tube implant 1 The hollow section in way of escape portion 12.According to an embodiment, the surface of front road interior zone 23 is smooth.According to an enforcement Example, the surface of front road interior zone 23 does not has screw thread.According to an embodiment, intraspinal tube implant 1 and particularly way of escape portion 12 are not passed through whole hollow pedicle fixture 2.According to an embodiment, the way of escape portion 12 of intraspinal tube implant 1 is intended to insert In front road interior zone 23.According to an embodiment, way of escape portion 12 is used as the guider of pedicle of vertebral arch fixture 2.Therefore, shoulder 121 Guiding brake as fixture 2.According to an embodiment, the way of escape portion 12 of intraspinal tube implant 1 can be along at least one Individual degree of freedom moves especially along 2 degree of freedom in the way of escape interior zone 23 of pedicle of vertebral arch fixture 2.According to an enforcement Example, slides in the way of escape Bu12Qian road interior zone 23 of intraspinal tube implant 1.According to an embodiment, way of escape portion 12 is with front Mechanical link between road interior zone 23 is that sliding pivot links.According to an embodiment, pedicle of vertebral arch fixture 2, particularly Pedicle of vertebral arch pin limits main shaft.According to this embodiment, the way of escape portion 12 of intraspinal tube implant 1 can be at pedicle of vertebral arch fixture 2 Front road interior zone 23 moves with displacement mode in a rotative pattern along described main shaft.
Advantageously, front road section 23 makes intraspinal tube implant 1 anchor independent of pedicle of vertebral arch fixture 2 in pedicle of vertebral arch Fixed expansion.Really, the degree of freedom along the main shaft displacement of pedicle of vertebral arch fixture 2 makes it possible to be not intended to intraspinal tube implant 1 and exists Vertebral body positions (that is, because disposing the feeding caused).Additionally, the degree of freedom around the main shaft rotation of pedicle of vertebral arch fixture 2 makes Obtain the dimension that can be not intended to intraspinal tube implant 1.So, intraspinal tube implant 1 is the most just according to disposing it Medium (that is, vertebral body) be suitable for its deployed position.
According to an embodiment, front road interior zone 23 does not include external screw thread.According to an embodiment, front road interior zone 23 and intraspinal tube implant 1 be not threaded together.
According to an embodiment, front road interior zone 23 also includes at least one recess 231, as shown in Figure 8 C.According to one Individual embodiment, front road interior zone 23 includes at least one axial recess (that is, parallel with z-axis recess).According to an enforcement Example, front road interior zone 23 includes at least one lateral notch (that is, being perpendicular to z-axis).According to an embodiment, Qian Lu inner area Section 23 includes at least one oblique recess 231.
According to an embodiment, front road interior zone 23 includes that at least one is axial and/or horizontal and/or oblique recessed Mouth 231.According to an embodiment, at least one recess 231 includes non-constant cross section.According to an embodiment, Qian Lu inner area Section 23 includes at least 2,3,4,5,6,7,8,9,10 recesses 231.According to an embodiment, recess is distributed in Qian Lu district regularly On the inner surface of section 12.According to an embodiment, pedicle of vertebral arch fixture 2 includes that at least one is suitable for utilizing insertion instrument 5 to make vertebra Any other device in the range of the breach 24 of nut fixture 2 rotation or the art.
Rear circuit component
As shown in Figure 4, including front road section 31 according to the rear circuit component 3 of the present invention, this front road section 31 is by nail rod, preferably Ground is made up of the drive screw rod 311 engaged with the female thread 221 of pedicle of vertebral arch fixture 2, therefore, it is possible to fixed by rear circuit component 3 To pedicle of vertebral arch fixture 2.Rear circuit component 3 also includes the way of escape section 32 being positioned at outside vertebra 4, and its geometry makes it possible to perform Excellent or the combination merit assisting Posterior fixation element of prosthetic ligament is such as followed closely known to those skilled in the art Energy.It is contemplated that with those skilled in the art known to any composite construction of other system.Rear circuit component 3 also wraps Including loading end 33, the selection carried out according to operator and/or pedicle of vertebral arch fixture 2 are in pedicle of vertebral arch bone (pedicle bone) Passing, loading end 33 faces toward osseous tissue or the way of escape section facing to pedicle of vertebral arch fixture 2.
Operation
Create route and after pediculus arcus vertebrae boring, utilize insertion instrument 5 will include pedicle of vertebral arch fixture 2 and vertebra The implant system of implant 1 inserts in pedicle of vertebral arch, then tightens, as it is shown in figure 5, wherein way of escape portion 12 inserts pedicle of vertebral arch fixture In the front road interior zone 23 of 2.Described insertion instrument 5 includes that working column 51, utilization are tightened pedicle of vertebral arch in pedicle of vertebral arch and fixed The breach 24 of part 2, this working column 51 rotatably fastens (that is, connecting) to pedicle of vertebral arch fixture 2.Described insertion instrument 5 is also The expansion pipe 52 arranged including the main shaft along insertion instrument 5, and construct this expansion pipe 52, at least to cross way of escape inner area The length of section 22.Expansion pipe 52 fastens (that is, connecting) way of escape portion 12 to intraspinal tube implant 1, and is particularly fastened to vertebra The center traction tube 13 of pipe implant 1.Control to implant system by being screwed into the external screw thread 21 of pedicle of vertebral arch fixture 2 in osseous tissue The insertion depth of system, thus in vertebral body, most preferably position intraspinal tube implant 1.Intraspinal tube implant is positioned with axle rotation mode 1 is utilized pipe 52 to control independent of inserting pedicle of vertebral arch fixture 2 by operator, to keep expansion face, such as, and intraspinal tube implant 1 (cranio-caudal) expansion board end to end, and with obtain when inserting pedicle of vertebral arch fixture 2 to be screwed into angle unrelated.As Fig. 6 A, Shown in 6B, 10A and 10B, passing pedicle of vertebral arch according to the intraspinal tube implant system of the present invention, then, intraspinal tube implant 1 is positioned at vertebra In body and pedicle of vertebral arch fixture 2 is anchored in pedicle of vertebral arch.
According to an embodiment, after inserting input system, pedicle of vertebral arch fixture 2 is securely fixed in pedicle of vertebral arch, and And intraspinal tube implant 1 is partially secured in pedicle of vertebral arch fixture 2 by its cylindric way of escape portion 12.Really, by the cylindric way of escape Portion 12 inserts in front road interior zone 23, therefore, lock around y-axis and the rotary motion of x-axis and lock along described x-axis and The displacement of y-axis.Because this reason, degree of freedom of these lockings guarantee the cylindric way of escape portion in road interior zone 23 before insertion Local locks with respect between 12.Term fastening refers to lock the whole degree of freedom between pedicle of vertebral arch fixture 2 and intraspinal tube implant 1.Art The fastening of language part refers to lock at least one degree of freedom between the two part.Then, pedicle of vertebral arch fixture 2 adjoins with shoulder 121. So, intraspinal tube implant 1 has additional support point in pedicle of vertebral arch.According to an embodiment, vertebral implant 1 is not by twisting Tightly it is fastened to pedicle of vertebral arch fixture 2.After an embodiment, with the intraspinal tube implant 1 of pedicle of vertebral arch fixture 2 assembling Road portion 12 does not cross the both sides of pedicle of vertebral arch fixture 2.According to an embodiment, the way of escape portion 12 of vertebral implant 1 is arranged on vertebra In the front road interior zone 23 of nut fixture 2.
As shown in figs. 7 a-b, by utilizing the pipe 52 of insertion instrument 5 (not shown in this figure) to pull center traction tube 13, Realize the expansion of intraspinal tube implant 1.Center traction tube 13 can unidirectional slip in the way of escape portion 12 of implant 1, it is thus possible to Enough deployment while preventing from unloading.By the front terminal in front road portion 11 is moved with rear terminal closer to together with, in pulling Heart traction tube 13 can dispose intraspinal tube implant 1.According to an embodiment, this deployment can make plate separate in vertebral body.Vertebra This expansion in body causes the front road of implant to shift: the front road portion 11 of expandable implant is sliding by front road interior zone 23 Dynamic so that the front road portion 11 that adjust intraspinal tube implant most preferably suitable to the environment disposing it.Advantageously, pedicle of vertebral arch fixture 2 Way of escape interior zone 23 and the way of escape portion 12 of implant 1 between slip link and be suitable for suitable tune independent of pedicle of vertebral arch fixture 2 The position of intraspinal tube implant 1 that is deployed in vertebral body, position.
As shown in Figure 7 B, way of escape portion 12 can in front road interior zone 23 slidably, but, not from it out, from And permanent additional support is provided, thus it is not intended to be deployed in intraspinal tube implant and depends on that pedicle of vertebral arch fixture 2 is at vertebral arch The position of the address in root.Really, construct front road interior zone 23, to lock intraspinal tube implant 1 along pedicle of vertebral arch fixture 2 X-axis and the displacement of y-axis and rotation, and make it possible to main shaft (that is, the z-axis) displacement along pedicle of vertebral arch fixture 2 and rotation.
According to an embodiment, the size in the way of escape portion 12 of implant 1 is such, i.e. way of escape portion 12 1 inserts front road Interior zone 23, implant 1 can no longer be extracted out from pedicle of vertebral arch fixture when implanted.The longitudinal ruler of front road interior zone 23 Very little long enough so that when disposing, way of escape portion 12 remains inserted into and be partly fastened to described front road interior zone 23.According to One embodiment, the length of front road interior zone 23 is really between 1 and 20mm or between 5 and 15mm.
According to this embodiment, intraspinal tube implant 1 in the axial direction with front road direction of displacement on relative to pedicle of vertebral arch fixture 2 Freely.Therefore, the deployment of intraspinal tube implant 1 is only dependent upon canalis spinalis internal skeleton environment, and this canalis spinalis internal skeleton environment is for canalis spinalis interplantation The expansible front road portion 11 entering thing 1 determines orientation and the degree of depth disposing described expandable portion.According to an embodiment, canalis spinalis interplantation Enter thing and particularly its way of escape portion 12 can move, preferably along 1,2,3,4,5 degree of freedom in front road interior zone 23 Ground moves along 2 degree of freedom, more preferably moves along 1 rotary freedom and a displacement freedom.According to a reality Execute example, intraspinal tube implant 1 and particularly its way of escape portion 12 can in way of escape interior zone 23 with about z-axis rotate or The mode of displacement is moved.
According to an embodiment, after intraspinal tube implant 1 expansion, lock the rotation about z-axis and implant at intraspinal tube Displacement between thing and pedicle of vertebral arch fixture, therefore, is fastened to pedicle of vertebral arch fixture 2 by expansible intraspinal tube implant.
According to an embodiment, by packing material being injected in vertebra 4 through at least one through hole 131, canalis spinalis interplantation The front road portion entering thing 1 is stable in expanded position.Syringe is utilized to pass through the circle in way of escape portion 12 of pedicle of vertebral arch fixture 2, implant Packing material is injected into the front road portion 11 of implant 1 by cylindrical recesses 122 and hollow traction tube 13.
According to an embodiment, by utilizing clamp device, locking way of escape section 12 is relative to the phase of pedicle of vertebral arch fixture 2 To motion, the way of escape portion 12 of intraspinal tube implant is fastened to pedicle of vertebral arch fixture 2.
According to an embodiment, as shown in Figure 8 A, by injecting packing material, the way of escape portion 12 of intraspinal tube implant fastens In pedicle of vertebral arch fixture 2.Packing material injects in cylindrical grooves 122 by way of escape interior zone 22 and injects at least one In individual through hole 124, thus produce with the inner surface of front road interior zone 23 and contact.Advantageously, way of escape section 128 includes periphery Room 123, at least one of which through hole 124 opens wide.So, packing material fills at least one through hole 124 and outer peripheral cell 123, with Make the interface that packing material is distributed between way of escape section 128 and front road interior zone 23, and therefore, increase contact surface Long-pending.In order to further enhance fastening, front road interior zone 23 includes at least one recess 231, and injects cylindrical grooves 122 In packing material fill at least one recess 231 of at least one through hole 124, outer peripheral cell 123 and front road interior zone 23. Advantageously, the solidification of the packing material being positioned at least one axial recess 231 strengthens according to the degree of freedom rotated around z-axis Fastening.Advantageously, the solidification of the packing material being positioned at least one lateral notch 231 is according to the freedom along z-axis displacement Degree strengthens fastening.Advantageously, the solidification of the packing material being positioned at least one oblique recess 231 is according to the position along z-axis The degree of freedom moved and rotate strengthens fastening.Advantageously, it is positioned at the packing material at least one recess 231 in non-eternal cross section Solidification according to around z-axis displacement and rotation degree of freedom strengthen fastening.According to an embodiment, recess 231 also allows for Packing material is injected into front road interior zone 23, thus further enhances fastening.According to an embodiment, inject cylindric recessed It is recessed that at least one of at least one through hole 124, outer peripheral cell 123 and front road interior zone 23 filled by packing material in groove 122 Mouth 231 and all or part of volume of front road interior zone 23.Advantageously, outer peripheral cell 123 so that it can independent of The intraspinal tube implant 1 orientation in pedicle of vertebral arch fixture 2 and particularly independent of way of escape section 128 at pedicle of vertebral arch fixture Orientation in 2 arrives recess 231.
[55] according to an embodiment, as shown in Figure 9 A, cone expansion cap 6 is utilized, by way of escape portion intraspinal tube implant Way of escape portion 12 is fastened in pedicle of vertebral arch fixture 2.Described tapered cap includes terminal after external screw thread and enlarging.Optionally by logical After cement is injected in vertebra by hole 131, insert described cap 6 by way of escape interior zone 22, and aim at the interior of way of escape section 128 Screw thread 126.When tapered cap 6 is screwed in the female thread 126 of way of escape section 128, the flared end of cap adjoins the expansion of way of escape section 127 Mouth end so that utilize the line of rabbet joint 125 can dispose way of escape section diametrically.Advantageously, by compressing, at front road interior zone Dispose way of escape section 128 in 23 diametrically to be fastened in pedicle of vertebral arch fixture 2 in the way of escape portion 12 of intraspinal tube implant.
According to an embodiment, intraspinal tube implant 1 one is deployed, is fastened to pedicle of vertebral arch fixture 2 and stablizes, if Inject bone cement or the succedaneum requirement of specific adaptation, then by only intraspinal tube implant 1 being screwed into and fastened at vertebral arch In the way of escape interior zone 22 of root fixture 2, it can fasten (that is, connecting) to pedicle of vertebral arch fixture 2-i.e., and intraspinal tube is implanted Circuit component 3 after thing 1 assembling.In this embodiment, rear circuit component 3 be at least partially situated at vertebra 4 outside and therefore, it is possible to Accommodate Posterior fixation element, be used for making vertebra known to such as nail rod or prosthetic ligament or those skilled in the art Any other device of bone fracture stabilization.
The method that the invention still further relates to process vertebral fracture, including:
-insert the implant system according to the present invention, wherein way of escape portion 12 is already inserted into vertebra 4 Zhong Qian road interior zone In 23, and utilize external screw thread 21, pedicle of vertebral arch fixture 2 is screwed in pedicle of vertebral arch;
-especially by pulling center traction tube 13 to make the front road portion 11 of intraspinal tube implant 1 expand;
The way of escape portion 12 of-intraspinal tube implant 1 in the front road interior zone 23 of pedicle of vertebral arch fixture 2 with displacement and rotation The mode turned makes it possible to position the front road portion of intraspinal tube implant in vertebral body along the moving of main shaft of pedicle of vertebral arch fixture 2 11;
-optionally, by through hole 131 by packing material such as vertebral body, so that the portion 11, front road of intraspinal tube implant is steady Fixed;And
-optionally, way of escape portion 12 is fastened in front road interior zone 23.

Claims (11)

1. an expansible intraspinal tube implant system, including:
Intraspinal tube implant (1), described intraspinal tube implant (1) includes expansible front road portion (11) and the way of escape being positioned in vertebral body Portion (12);And
Pedicle of vertebral arch fixture (2), it front road interior zone including limiting the hollow section for accommodating described way of escape portion (12) (23) and way of escape interior zone (22),
The described way of escape portion (12) of wherein said intraspinal tube implant (1) can be moved along at least one degree of freedom.
Expansible intraspinal tube implant system the most according to claim 1, wherein said pedicle of vertebral arch fixture (2) includes outer spiral shell Stricture of vagina (21), for guaranteeing the grappling in pedicle of vertebral arch of the described pedicle of vertebral arch fixture.
3., according to the expansible intraspinal tube implant system described in claims 1 or 2, wherein said pedicle of vertebral arch fixture (2) is wrapped Include main shaft, and the described way of escape portion (12) of described intraspinal tube implant (1) can described described pedicle of vertebral arch fixture (2) With translation and rotation mode along the described motion of main shaft of described pedicle of vertebral arch fixture (2) in front road interior zone (23), wherein, The dimension in the described front road portion (11) of described intraspinal tube implant (1) independent of described pedicle of vertebral arch fixture (2) described Described position in pedicle of vertebral arch.
4. according to the expansible intraspinal tube implant system described in any one in claims 1 to 3, wherein said canalis spinalis interplantation The described front road portion (11) entering thing (1) includes that the first and second plates, described first and second plates are suitable to be formed respectively in vertebral body First and second bearing-surfaces, said two bearing-surface is suitable for disconnected from each other along predetermined expansion face.
5. according to the expansible intraspinal tube implant system described in any one in Claims 1-4, inside wherein said front road Section (23) includes at least one recess (231) being positioned on the inner surface of described front road interior zone (23).
6. according to the expansible intraspinal tube implant system described in any one in claim 1 to 5, wherein said canalis spinalis interplantation The way of escape section (128) of the described way of escape portion (12) entering thing includes cylindrical grooves (122) and at least one clamp device, described Clamp device is suitable for locking the rotation mode between described intraspinal tube implant (1) and described pedicle of vertebral arch fixture (2) and displacement The relative motion of mode.
Expansible intraspinal tube implant system the most according to claim 6, wherein said clamp device includes that at least one leads to Hole (124) and outer peripheral cell (123), described through hole (124) passes described way of escape section (128), and described outer peripheral cell (123) is by described Described at least one through hole (124) and the surfactant fluid UNICOM of way of escape section (128).
Expansible intraspinal tube implant system the most according to claim 6, wherein said clamp device includes at least two groove Seam (125), the described line of rabbet joint (125) is axially along terminal after described way of escape section (128), female thread (126) and enlarging (127) extend;It is suitable for engaging with cone expansion cap (6).
9., according to the expansible intraspinal tube implant system described in any one in claim 1 to 8, also include rear circuit component (3) outside, described rear circuit component (3) is positioned partially at described vertebra and be fastened to described pedicle of vertebral arch fixture (2).
Expansible intraspinal tube implant system the most according to claim 9, wherein utilizes and is screwed into described way of escape interior zone (22) the threaded bar (311) in female thread (221), is fastened to described pedicle of vertebral arch fixture (2) by described rear circuit component (3).
11. include according to the expansible intraspinal tube implant system described in claim 9 or 10, wherein said rear circuit component (3) Way of escape section (32), described way of escape section (32) is suitable for and such as nail rod or the additional Posterior fixation element group of prosthetic ligament Dress.
CN201480070702.5A 2013-12-23 2014-12-23 Expansible intraspinal tube implant system with posterior Pedicle fixing piece Active CN105934211B (en)

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FR1363467A FR3015221B1 (en) 2013-12-23 2013-12-23 EXPANSIBLE INTRAVERTEBRAL IMPLANT SYSTEM WITH POSTERIOR PEDICULAR FIXATION
FR1363467 2013-12-23
PCT/FR2014/053549 WO2015097416A1 (en) 2013-12-23 2014-12-23 Expansible intravertebral implant system with posterior pedicle fixation

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